<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加功能 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <div>
            <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              clearable
              @clear="getUserList"
            >
              <el-button
                slot="append"
                icon="el-icon-search"
                @click="search"
              ></el-button>
            </el-input>
          </div>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>

      <!-- 用户列表 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <!-- {{ scope.row.mg_state }} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- {{ scope.row slot-scope="scope" }} -->
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%%"
      @close="addDialogClose"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addFrom"
        :rules="addFromRules"
        ref="addFromRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addFrom.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addFrom.password"></el-input> </el-form-item
        ><el-form-item label="邮箱" prop="email">
          <el-input v-model="addFrom.email"></el-input> </el-form-item
        ><el-form-item label="手机" prop="mobile">
          <el-input v-model="addFrom.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      @close="editDialogClosed"
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
    >
      <el-form
        :model="editFrom"
        :rules="editFromRules"
        ref="editFromRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editFrom.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editFrom.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editFrom.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="seletedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
  
<script>
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^[0-9a-zA-Z_.-]+[@][0-9a-zA-Z_.-]+([.][a-zA-Z]+){1,2}$/

      if (regEmail.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的邮箱'))
    }

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^1[3|4|5|7|8][0-9]{9}$/

      if (regMobile.test(value)) {
        return cb()
      }

      cb(new Error('请输入合法的电话号码'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2,
      },
      userlist: [],
      total: 0,
      // 控制对话框的显示与隐藏
      addDialogVisible: false,
      addFrom: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      addFromRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editFrom: {},
      // 修改表单的验证规则对象
      editFromRules: {
        email: [
          { required: true, message: '请输入合法的邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入合法的电话号码', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 当前需要被分配角色的用户信息
      userInfo: {},
      // 所有的角色列表
      rolesList: [],
      // 已选中的角色id值
      seletedRoleId: '',
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 搜索获取用户列表
    search() {
      if (this.queryInfo.query.trim().length <= 0) {
        this.queryInfo.query = ''
        return
      }
      this.queryInfo.pagenum = 1
      this.getUserList()
    },
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) return this.$messge.error('res.meta.msg')
      this.userlist = res.data.users
      this.total = res.data.total
      // console.log(res)
    },
    // 监听 pagesize页码改变的事件
    handleSizeChange(newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch 开关状态的改变
    async userStateChanged(userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.state = !userinfo.state
        return this.$message.error('用户数据更新失败')
      }
      this.$message.success('更新用户数据成功')
    },
    // 监听用户对话框关闭事件
    addDialogClose() {
      this.$refs.addFromRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser() {
      this.$refs.addFromRef.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addFrom)
        if (res.meta.status !== 201) {
          this.$message.error(res.mata.msg)
        }
        this.$message.success(res.meta.msg)
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 展示编辑的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.editFrom = res.data
      this.editDialogVisible = true
      // console.log(res)
      // console.log(id)
    },
    // 监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFromRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFromRef.validate(async (valid) => {
        // console.log(valid)
        if (!valid) return
        // 发起修改用户信息的请求
        const { data: res } = await this.$http.put(
          'users/' + this.editFrom.id,
          {
            email: this.editFrom.email,
            mobile: this.editFrom.mobile,
          }
        )
        // console.log(res)
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }

        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('更新成功')
      })
    },
    // 删除用户信息
    async removeUserById(id) {
      // 弹框询问用户
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      //console.log(confirmResult) // 确定返回confirm 取消返回cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败')
      }
      this.$message.success('删除成功')
      this.queryInfo.pagenum =
        this.total % this.queryInfo.pagesize == 1
          ? this.queryInfo.pagenum - 1
          : this.queryInfo.pagenum
      this.getUserList()
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo

      // 获取所有的角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }

      this.rolesList = res.data
      // console.log(this.rolesList)
      this.setRoleDialogVisible = true
    },
    // 点击按钮分配角色
    async saveRoleInfo() {
      if (!this.seletedRoleId)
        return this.$message.error('请选择要分配的角色！')

      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.seletedRoleId,
        }
      )
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success('分配角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.seletedRoleId = ''
      this.userInfo = {}
    },
  },
}
</script>

<style lang="less" scoped>
</style>